Journal
OPTICS LETTERS
Volume 35, Issue 12, Pages 2052-2054Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.35.002052
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- Deutsche Forschungsgemeinschaft (DFG)
- Munich Centre for Advanced Photonics (MAP)
- KORONA Max-Planck-Institut fur Quantenoptik (MPQ)/Fraunhofer Institut fur Lasertechnik (ILT) cooperation and the King Saud University (KSU)/MPQ collaboration
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A passive optical resonator is used to enhance the power of a pulsed 78 MHz repetition rate Yb laser providing 200 fs pulses. We find limitations relating to the achievable time-averaged and peak power, which we distinguish by varying the duration of the input pulses. An intracavity average power of 18 kW is generated with close to Fourier-limited pulses of 10 W average power. Beyond this power level, intensity-related effects lead to resonator instabilities, which can be removed by chirping the seed laser pulses. By extending the pulse duration in this way to 2 ps, we could obtain 72 kW of intracavity circulating power with 50 W of input power. (C) 2010 Optical Society of America
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